9
Owner’s Manual
Owner’
s Manual
AMP MODE
DESIGNED BY MACKOIDS IN WOODINVILLE, WA, USA • MANUFACTURED IN CHINA FABRIQUE EN CHINE • COPYRIGHT ©2007
"MACKIE", AND THE RUNNING MAN FIGURE ARE TRADEMARKS OF LOUD TECHNOLOGIES, INC.
CHANNEL 2
CHANNEL 1
BRIDGED
BRIDGED
CH 1
CH 2
CLIP LIMIT
FILTER
SUBSONIC @ 30Hz
SPEAKER OUTPUTS
PIN
1+
1
PIN
1+
2+
1+
1
PIN
2+
2
PIN
1+
1
FAST RECOVERY
POWER AMPLIFIER
THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES FOR
THE U.S. AND ICES-003, FOR CANADA. OPERATION IS SUBJECT
TO THE FOLLOWING TWO CONDITIONS: (1) THIS DEVICE MAY
NOT CAUSE HARMFUL INTERFERENCE, AND (2) THIS DEVICE
MUST ACCEPT ANY INTERFERENCE RECEIVED, INCLUDING
INTERFERENCE THAT MAY CAUSE UNDESIRED OPERATION.
WARNING
:
TO REDUCE THE RISK OF FIRE OR ELECTRIC
SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR
MOISTURE. DO NOT REMOVE COVER. NO USER SERVICEABLE
PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL.
AVIS
:
RISQUE DE CHOC ELECTRIQUE — NE PAS OUVRIR
Rear Panel Features
5. POWER CORD SOCKET
This is where you connect the detachable power cord
included with your amplifier. Plug the other end of the
power cord into an AC outlet properly configured with
the voltage required for your particular model.
Be sure the AC outlet can supply enough current to
allow full power operation of all the amplifiers plugged
into it. The outlet should be a three-prong socket that
matches the power cord.
. FAN VENTS
Do not obstruct the ventilation openings of
the amplifier. Fans move air over the heat-
sinks to cool down the power transistors. If
these vents are restricted then the amplifier may over-
heat and shut down.
7. SPEAKER OUTPUTS
There are two options for connecting your speakers:
binding posts and Speakon connectors.
Normally, you would use either the binding posts or
the Speakon connectors. Since the connectors are wired
in parallel (e.g., channel 1 binding post and Speakon
are in parallel, and channel 2 binding post and Speakon
are in parallel), you can connect a speaker to each con-
nector, as long as the total impedance per channel is not
less than two ohms.
• Two 8 ohm speakers in parallel equals 4 ohms.
• Two 4 ohm speakers in parallel equals 2 ohms.
When the amplifier is used in bridged-mono mode, use
either the center Speakon, or the two red binding posts
to connect your single speaker.
In bridged-mono mode, do not use a speaker
impedance less than 4 ohms. Be careful as
both speaker wires are live. Do not connect
the speaker wires to any external device that is
grounded.
8. COMBO INPUTS
These combination inputs allow you to connect bal-
anced XLR plugs or 1/4" plugs.
The XLR inputs are wired conventionally, with pin 2
hot, pin 3 cold, and pin 1 ground.
The 1/4" inputs allow you to connect balanced 1/4"
TRS or unbalanced TS plugs from line-level sources.
Use balanced connections where possible, as these
offer better rejection of noise than unbalanced lines.
Use high-quality, three-conductor shielded cable for
balanced connections. The better the shield, the better
the audio signal is protected from induced EMI and RFI.
9. THRU OUTPUTS
These male XLR connectors allow you to send the
balanced input signals to other amplifiers, powered
speakers, mixers, or recorders in your system. The line-
level output is a straight copy of what goes in, and the
amplifier level controls [4] and switches have no effect.
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